Telephone system



July 11, 1944. H. w. BALzl-:R

I TELEPHONE SYSTEM 48 Sheets-Sheet 1 Filed 001:. 19, 1942 Q murio mt/m0 July 11, 1944. H. w. BALZER TELEPHONE SYSTEM Filed oct'. 19,' 1942 48 Sheets-Sheet 2 ATTORNEYS H. w. BALZER TELEPHONE SYS TEM Filed oct. 19, 1942 48 Sheets-Sheet 5 r r v r f C||46` C||48 C||42 C||44 C||43L C||45 C||47 355 A *l 345 sfu/ L Lam OPERATOR Y PoscIRculT/w KEY/ 42.52- FlG. 3A

342@ 342 DIGIT P05- TRuNK -1 KEY 344 PuLslNs 36o TGLL SWU-C HBOARD Azsm aan 27m@ INVENTOR.

HARVEY W. BALZER ATTORNEYS TELEPHONE SYSTEM Filed Oct. 19, 1942 48 Smeets-Sheetl 4 TOLL OFFICEV `TRUNK clRculT 26 Kam :.2331 FIG. 3B

INVENTOR. v HARVEY W. BALZER ATTORNEYS July 11, 1944. A H. W. BALZR 2,353,212

TELEPHONE SYSTEM Filed 001,. 19; 1942 48 Sheets-Sheet 6 +IFIG. 5'

54h/mw Y l 60 V571 "H- E570 55'/ |FF. SLAVE. TRUNK c|Rcu|T 2e 3 A TRANSFER ,MPLEX SLAVE sPULSE Rsso/ 51| l FM 1 Y 'L52' MARR R5501ETRANSFER A l coNTRol. l

www 58|/Q SU PY.

JNVENTOR. HARVEY W. BALZER ATTORNEYS July 11, '1944- T H. w. BALZER 42,353,212

y v TELEPHONE SYSTEM y Filed Oct. 19, 1942 48 Sheets-Sheet 7 CM2/hem FI G 6 i A 5632 TRUNK CIRCUIT 25 k 635 i 62| v1 n A l Jg? LOGE SElzuRE -ISIMPLEx/GBO M638 PuL A $639 -SE Reso 167 @68| "L n LOOP Mgg-'21 R65 l REoSl-AVE l Y f-o-l@ l i n INVENTOR.

4HRVEY --W.. BALZER ATTORNEYS July 11, 1944. y H. w. BALZER l 2,353,212

TELEPHONE S'YETEM ATTORNEYS July 11', I19.44. H. w. BALUZER 2,353,212

TELEPHONE SYSTEM v Filed Oct. 19, 1942 I 48 Sheets-Sheet 9 F *L d C84 842 27 FIG' 8 804 8Io n TOLL 6? 8o 8I3 I OFFICE 805 8|4 TRUNK cIRcUIT 27 82If`J TT 29 28 l 'i n.1 j n, f-

MANUAL A o FFIcE No.I I

28 4I5g 7 Y 28;

MANUAL oFFIcE I g 29 8J I 42 296C cIo2 ' INVENToR.

HARVEY w. RALzER I l BY v ATTORNEYS July 1'1, 1944. H w. BALZER j l2,353,212

y TELEPHONE SYSTEM Filed Oct. 19,' 1942 48 Sheets-Sheet lO,

FIG. "9 TRUNK ciRcun 27 27" gsmmwes INVENToR. HARVEY W. BALZER ATTORNEYS July 11, 1944.

H' W. BALZER TELEPHONE SYSTEM Filed 001'.. 19, 1942 CWNA/|04' l Y TRANS.,S|:AVE i 4 0 VIo7I I RIoso RIo7o TRUNK CIRCUIT 27 |05/ u @IFE A SLAVE #il RIoso sIMPLExL PULSE /JoII 5 m05ORNSFER l RIo3o I Ja i IosI y CONTROL y Riolo sUPIry` RERING 'Ottwiwal "MO5-Iv y i SIGNAL LEAD cIo251 A T 1044 fk |074 P Iosa v l INVENToR.

- HARVEY -w..BAI zER BY i mfmJA/M QZ:

ATTORNEYSl July ll, 1944.

H. W. BALZER TELEPHONE SYSTEM Filed Oct. 19, 1942 v48 Sheets-Sheet 12 ema/Lum TRUNK clRcuzT 27 (27m 'Win34 las *M137 FIG. .Il

TSIMMPLEX- Ruso 'lusa M139 PULSEx Loop IIBI (SEIZURE LOOP PULSE SI MP LEX SLAVE INVENTOR. HARVEY W. BALZER ATTORNEYS July l11., 1944. -H,W, BALZR y2,353,212

TELEPHONE SYSTEM ATTORNEYS.

July v11, 1944. H w, BALZER 2,353,212

TELEPHONE SYSTEM ATTORNEYS July11, 1944. l H w. BAEZER. 2,353,212v

TELEPHONE SYSTEM l Filed Oct. 19, 1942 48 Sheets-Sheet 1G SELECTOR 57 FIG, l5

HARVEY W. BALZER mwym ATTO R N EYS July 11, 1944.

H. w. BAL-2ER 2,353,212

TELEPHONE SYSTEM Filed oct? 19, 1942 48 sheets-sheet 17 ATTORNEYS July 11, 1,944 H. w. BALzER 2,353,212

TELEPHONE' SYSTEM Filed OCT.. 19, 1942 48 Sheets-'Sheet 18 'ATTORNEYS July 11, 1944 H. w. BALZER 2,353,212

- TELEPHONE SYSTEM Filed oct. 19, 1942 n 48 sheets-sheetl 19 f Y Tou. SELECTOR 32 xlael f T 183| I lala (N823 g TRANS f \/|a4| IMA/ ll'l m30 m40A /1863 'L l A L Isl? |843/ 18M/V l824\/ J, v |842 |865V'V j 1 ln311J |870)h muy* l Q-@QE 8 5 825 mawals n *floss lzM A INVENTOR. HARVEY w. BALZER 'ATTORNEYS July l1, 1944.

H. W. BALZER TELEPHONE SYSTEM Filed Oct. 19, 1942 48 Sheets-Sheet 2O V R190? l I KNSM-N I' mflgoz l MSF- RI94O 'RING- |945 CONTROL lNvENToR. HARVEY W. BALZER ATTORNEYS 

